1. Department of Neuroscience, University of Pisa, Pisa, Italy
2. PERCRO (Perceptual Robotics) Laboratory, Scuola Superiore Sant'Anna, Pisa, Italy
3. Department of Medical and Surgical Sciences and Neuroscience, University of Siena, Siena, Italy
4. Auxilium Vitae, Volterra, Pisa, Italy